I bought an Olympic Arms carbine. I regularly shoot bowling pins at 400 yards with open sights. The only things I have more accurate are my M1 Garrands, 1903 Springfield, and my K31, but those are all long barrelled rifles. All AR-15 platforms are mil-spec guns, so don't be afraid of spending less. A local dealer has DPMS for about $700.00. If you aren't going to get into competition, don't spend big bucks on a range gun.